Cells are the building blocks of all living things. The term ‘cell’ was first coined by Robert Hooke in the 16th century when he was studying different objects using the newly-invented microscopes. In modern times, with more powerful microscopes, scientists have been able to look at the different parts that make up the cells of living things. Both plant and animal cells play crucial roles in their respective organisms. The following activities are designed to help students understand the difference between and functions of both plant and animal cells.